Cap with assemble rail for accessory

ABSTRACT

A cap includes a cap body having a cap cavity and a bottom brim, a cap accessory having a corresponding coupling edge, and a sliding rail assembly, wherein the sliding rail assembly includes an elongated guiding rail extended along the bottom brim of the cap body, and a sliding guider which is affixed to a portion of the coupling edge of the cap accessory and slidably engaged with the sliding rail in such a manner that the cap accessory is capable of selectively sliding along the bottom brim of the cap body.

BACKGROUND OF THE PRESENT INVENTION

[0001] 1. Field of Invention

[0002] The present invention relates to a cap, and more particularly toa cap with an assemble rail for a cap accessory, wherein an elongatedguiding rail is affixed along a bottom brim of a cap body in such amanner that the cap accessory, such as a cap peak or a sunglasses, iscapable of sliding along the guiding rail to selectively adjust aposition of the accessory with respect to cap body.

[0003] 2. Description of Related Arts

[0004] Caps are known in art and become necessities to people duringoutdoor activities. Conventionally, a cap comprising a cap body having acap cavity and a cap peak outwardly extended from a bottom brim of thecap body in such a manner that when the cap body is put on a wearer'shead, the cap peak is capable of blocking the sunlight directly towardsthe wearer's eyes so as to provide a shading purpose. Therefore, manysportsmen would like to wear a cap during the outdoor activities.

[0005] For example, baseball players would like to wear a baseball capfor shading because they have to catch the baseball flying in the sky.However, when they run from one direction to another direction, thesunlight may directly shines on their faces. Therefore, they have toturn the cap around their head for shading the sunlight. Sometime, it isa hassle for them to switch the cap peak to block the sunlight so thatthey may throw the cap away to prevent missing of the catch of the ball.

[0006] Moreover, the cap body is constructed by a plurality of fabricmade cap leaves connected with each other edges to edges. Sincedifferent wearers have different head shapes, the cap cavity of the capbody is capable of deforming its shape to fit the head shape of thewearer after a period of time. Therefore, when the wearer needs to turnthe cap around his or her head at the time, the shape of the cap bodywill be distorted.

[0007] In addition, it is a hassle for the wearer that he or her mustinitially take off the cap from his or her head and put it back on inorder to turn the cap around the head. For example, a quick adjustmentof the cap peak is required for the wearer during driving. However, theprocedure of turning the cap around will disturb the wearer who isdriving.

SUMMARY OF THE PRESENT INVENTION

[0008] A main object of the present invention is to provide a cap withan assemble rail for an accessory, wherein an elongated guiding rail isaffixed along a bottom brim of a cap body in such a manner that the capaccessory, such as a cap peak or a sunglasses, is capable of slidingalong the guiding rail to selectively adjust a position of the accessorywith respect to cap body.

[0009] Another object of the present invention is to provide a cap withan assemble rail for an accessory, wherein the cap accessory is capableof quickly sliding along the guiding rail for shading purpose. In otherwords, the wearer does not require to take off the cap and turn the caparound the wearer's head.

[0010] Another object of the present invention is to provide a cap withan assemble rail for an accessory, wherein since only the accessory isslidably turned with respect to the cap body, the cap body will bestayed at the same position on the wearer's head, so as to prevent thecap body from being distorted.

[0011] Another object of the present invention is to provide a cap withan assemble rail for an accessory, wherein the guiding rail is adaptedto built-in with the cap body at the bottom brim thereof, so as to keepthe aesthetic appearance of the cap.

[0012] Another object of the present invention is to provide a cap withan assemble rail for an accessory, wherein more than one cap accessoryis capable of slidably mounting to the cap body without distorting theshape of the cap.

[0013] Accordingly, in order to accomplish the above objects, thepresent invention provides a cap, comprising:

[0014] a cap body having a cap cavity and a bottom brim;

[0015] a cap accessory having a corresponding coupling edge; and

[0016] a sliding rail assembly, comprising:

[0017] an elongated guiding rail extended along the bottom brim of thecap body; and

[0018] a sliding guider which is affixed to a portion of the couplingedge of the cap accessory and slidably engaged with the sliding rail insuch a manner that the cap accessory is capable of selectively slidingalong the bottom brim of the cap body.

BRIEF DESCRIPTION OF THE DRAWINGS

[0019]FIG. 1 is a perspective view of a cap with a sliding rail assemblyaccording to a first preferred embodiment of the present invention.

[0020]FIG. 2 is an exploded perspective view of the sliding railassembly of the cap according to the above first preferred embodiment ofthe present invention.

[0021]FIG. 3 is a sectional view of the sliding rail assembly of the capaccording to the above first preferred embodiment of the presentinvention.

[0022]FIG. 4 illustrates a first alternative mode of the sliding railassembly of the cap according to the above first preferred embodiment ofthe present invention.

[0023]FIG. 5 illustrates a second alternative mode of the sliding railassembly of the cap according to the above first preferred embodiment ofthe present invention.

[0024]FIG. 6A illustrates a third alternative mode of the sliding railassembly of the cap according to the above first preferred embodiment ofthe present invention.

[0025]FIG. 6B illustrates a fourth alternative mode of the sliding railassembly of the cap according to the above first preferred embodiment ofthe present invention.

[0026]FIG. 7 is a perspective view of a cap with a sliding rail assemblyaccording to a second preferred embodiment of the present invention.

[0027]FIG. 8 is an alternative mode the sliding rail of the capaccording to the above second preferred embodiment of the presentinvention.

[0028]FIG. 9 illustrates an alternative mode of the size adjuster of thesliding rail of the cap according to the above second preferredembodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0029] Referring to FIGS. 1 and 2 of the drawings, a cap according to afirst preferred embodiment of the present invention is illustrated,wherein the cap comprises a cap body 10 having a cap cavity 11 and abottom brim 12 and a cap accessory 20 having a corresponding couplingedge 21.

[0030] The cap further comprises a sliding rail assembly 30 whichcomprises an elongated guiding rail 31 extended along the bottom brim 12of the cap body 10 and a sliding guider 32 which is affixed to a portionof the coupling edge 21 of the cap accessory 20 and slidably engagedwith the sliding rail 31 in such a manner that the cap accessory 20 iscapable of selectively sliding along the bottom brim 12 of the cap body10.

[0031] According to the preferred embodiment, the guiding rail 31 is anelongated strap having a C-shaped cross sectional defining alongitudinal sliding slot 311 having an opening facing outwardly to thecoupling edge 21 of the cap accessory 20, wherein the guiding rail 31has a length at least shorter than a length of the bottom brim 12 of thecap body 10.

[0032] The sliding guider 32 comprises an elongated guiding arm 321which is securely affixed to the portion the coupling edge 21 of the capaccessory 20 and extended into the sliding slot 311 through the openingthereof, and an enlarged guider head 322 extended from the guiding arm321 to a position within the sliding slot 311 for retaining the slidingguider 32 in position, so as to slidably engage the sliding guider 32with the guiding rail 31, as shown in FIG. 3. Therefore, the wearer isable to slide the cap accessory 20 along the bottom brim 12 of the capbody 10.

[0033] Accordingly, the guider head 322 is preferably made of siliconeadapted to provide an adequate friction between the guider head 322 andthe sliding slot 311 to hold the cap accessory 20 in position withrespect to the cap body 10. However, the wearer is able to easily slidethe cap accessory 20 along the bottom brim 12 of the cap body 10 while asliding force is applied on the cap accessory 20.

[0034] Moreover, the guiding rail 31 further comprises at least asliding stopper 312 provided at an end portion of the sliding slot 311to stop the sliding movement of the guider head 322 along the slidingslot 311 so as to prevent the sliding guider 32 sliding out of theguiding rail 31.

[0035] It is worth mentioning that in order to ensure the supportbetween the cap body 10 and the cap accessory 20, more than one slidingguider 32 can be spacedly affixed to the coupling edge 21 of the capaccessory 20 to slidably engage with the guiding rail 31 so as tosubstantially support the cap accessory 20 at the bottom brim 12 of thecap body 10. Otherwise, a width of the sliding guider 32 can besubstantially increased to slidably engage with the guiding rail 31 soas to rigidly support the cap accessory 20 at the bottom brim 12 of thecap body 10.

[0036] As shown in FIG. 1, the cap accessory 20 is embodied as a cappeak wherein the coupling edge 21 is formed at an inner edge of the cappeak of the cap accessory 20, in such a manner that the wearer is ableto turn the can peak of the cap accessory 20 along the bottom brim 12 ofthe cap body 10 for shading purpose.

[0037] As shown in FIG. 2, the sliding rail assembly 30 furthercomprises an alignment arrangement 33 to guide the cap accessory 20 inposition wherein the alignment arrangement 33 has a plurality of guidingindentions 331 spacedly formed on upper and lower walls of the slidingslot 311 respectively and comprises at least two corresponding guidingprotrusions 332 opposedly projected from a circumferential surface ofthe guider head 322 in such a manner that when the sliding guider 32 isslid along the guiding rail 32, the guiding protrusions 322 arerespectively engaged with the corresponding guiding indentions 331 so asto retain the cap accessory 20 in position.

[0038] As shown in FIGS. 1 and 3, the cap body 10 is constructed by aplurality of cap leaves 101 connected in edge to edge manner to form thecap cavity 11 and an elongated brim strap 102 encircling around bottomedges of the cap leaves 101, wherein an upper portion of the guidingrail 31 is affixed to the bottom edges of the cap leaves 101 and a lowerportion of the guiding rail 31 is affixed to an upper edge of the brimstrap 102 while the brim strap 102 is inwardly flipped to attached toinner sides of the cap leaves 101 to form the bottom brim 12 in such amanner that the sliding slot 311 is indented on the cap body 10, about 2mm depth, around the bottom brim 12 thereof, so as to keep the aestheticappearance of the cap.

[0039] It is worth mentioning that the guiding rail 31 should be made offlexible material and the thickness of the guiding rail 31 should berelatively thin with respect to the thickness of the cap body 10 suchthat when the wearer wears the cap of the present invention, the wearerfeels comfortable even though the guiding rail 31 is mounted along thebottom brim 12 of the cap body 10. Moreover, the guiding rail 31 canfurther enhance the shape of the bottom brim 12 of the cap body 10 so asto prevent the distortion of the cap body 10.

[0040] Preferably, the guiding rail 31 is affixed to the bottom brim 12of the cap body 10 by sewing the upper and lower portions of the guidingrail 31 along the bottom brim 12 of the cap body 10.

[0041]FIG. 4 illustrates a first alternative mode of the sliding railassembly 30A according to the first embodiment, wherein the slidingguider 32A comprises an elongated guiding arm 321A which is securelyaffixed to the coupling edge 21A of the cap accessory 20A and extendedinto the sliding slot 311 A through the opening thereof, and an enlargedguider head 322A rotatably mounted to a rear end of the guiding arm 321at a position within the sliding slot 311A for retaining the guider head322A in position, so as to slidably engage the sliding guider 32A withthe guiding rail 31A.

[0042] In other words, when the wearers turns the cap accessory 20Aalong the bottom brim 12A of the cap body 10A, the guider head 322A isdriven to rotate within the sliding slot 311A for reducing a frictiontherebetween, so as to enhance a smooth sliding movement of the capaccessory 20A.

[0043] In addition, the alignment arrangement 33A has a plurality ofguiding indentions 331 A spacedly formed on an inner wall of the slidingslot 331A and comprises a corresponding guiding protrusion 332Aoutwardly projected from a rear wall of the guider head 332A andarranged to engage with one of the guiding indentions 331A when theguider head 332A is rotatably slid along the sliding slot 311A so as toretain the cap accessory 20A in position with respect to the cap body10A.

[0044]FIG. 5 illustrates a second alternative of the sliding railassembly 30B wherein the guiding rail 31B comprises an elongated guidingarm 311B encirclingly extended along the bottom brim 12B of the cap body10B and an enlarged guider head 312B extended from the guiding arm 311B.

[0045] The sliding guider 32B, having a C-shaped cross sectional, has asliding slot 321B having an opening facing towards the guiding rail 31Bwherein the guiding arm 311B is arranged to extend to the sliding slot321B through the opening thereof while guider head 312B is slidablydisposed in the sliding slot 321B so as to slidably engage the slidingguider 32B with the guiding rail 31 B, as shown in FIG. 5.

[0046] In addition, the attachment of the guiding rail 31 B is that anupper portion of the guiding rail 31B is affixed to the bottom edges ofthe cap leaves 101B and a lower portion of the guiding rail 31B isaffixed to an upper edge of the brim strap 102B while the brim strap102B is inwardly flipped to attached to inner sides of the cap leaves101B to form the bottom brim 12B in such a manner that the guider head312B is protruded along the bottom brim 12B of the cap body 10B, so asto keep the aesthetic appearance of the cap.

[0047] It is worth mentioning that in comparison with FIG. 2 and FIG. 5,the sliding engagement of the sliding rail assembly 30B according to thesecond alternative is a reversed configuration of the first embodiment.Therefore, the alignment arrangement 33 and its alternative should beincorporated with the second alternative mode without departing thespirit of the sliding rail assembly 30B, as shown in FIG. 5.

[0048]FIG. 6A illustrates a third alternative mode of the sliding railassembly 30C wherein the guiding rail 31C has two sliding slots 311Cparallelly extended along the bottom brim 12C of the cap body 10C,wherein each of the sliding slots 311C has a C-shaped cross section toslidably engage with the sliding guider 32C in such a manner that twocap accessories 20C are adapted to slidably mount to the bottom brim 12Cof the cap body 10C. Moreover, the guiding rail 31C is mounted on aninner side of the cap body 10C such that the two sliding slots 311C areindented on an outer side of the cap body 10C along the bottom brim 12Cthereof.

[0049] Accordingly, the sliding guider 32C comprises an elongatedguiding arm 321C which is securely affixed to the coupling edge 21C ofthe respective cap accessory 20C and extended into the respectivesliding slot 311C through the opening thereof, and an enlarged guiderhead 322C extended from the guiding arm 321C to a position within therespective sliding slot 311C for retaining the guider head 322C inposition, so as to slidably engage the sliding guider 32C with theguiding rail 31C.

[0050] As shown in FIG. 6A, the two cap accessories 20C are embodied asthe cap peak and a foldable sunglasses respectively. The foldablesunglasses, which is a conventional auxiliary sunglasses, comprises alens frame for shading the sunshine and a pivot joint connected to anupper portion of the lens frame wherein the coupling edge 21C is formedat an edge of the pivot joint in such a manner that when the slidingguider 32C is mounted to the coupling edge 21C of the foldablesunglasses of the cap accessory 20C to slidably engage with therespective sliding slot 311C of the guiding rail 31C, the foldablesunglasses of the cap accessory 20C is capable of sliding along thebottom brim 12C of the cap body 10C individually. In other words, thewearer is able to slidably adjust the foldable sunglasses to a positionto effectively shade the sunshine. Moreover, the wearer is able topivotally flip the foldable sunglasses at any desired shading angle. Itis worth mentioning the foldable sunglasses of the cap accessory 20C areadapted to be incorporated with the above first embodiment and itsalternatives without altering the original structure.

[0051]FIG. 6B illustrates another alternative mode of the firstembodiment, wherein the sliding rail assembly 30D comprises two guidingrails 31D parallelly and spacedly extended along the bottom brim 12D ofthe cap body 10D at an outer side thereof, wherein each of the slidingslots 311D has a C-shaped cross section to slidably engage with thesliding guider 32D in such a manner that two cap accessories 20D areadapted to slidably mount to the brim 12D of the cap body 10D.

[0052] In addition, the two cap accessories 20D are embodied as the cappeak and a foldable sunglasses respectively, wherein the cap peak of thecap accessory 20D is slidably engaged with the guiding rail 31D at anupper side of the bottom brim 12D of the cap body 10D while the foldablesunglasses of another cap accessory 20D is slidably engaged with theguider rail 31D at a lower side of the bottom brim 12D of the cap body10D, in such a manner that the cap peak and the foldable sunglasses ofthe cap accessories 20D are individually slid along the bottom brim 12Dof the cap body 10D.

[0053] As shown in FIG. 7, a cap of a second embodiment illustrates analternative mode of the first embodiment of the present invention,wherein the structure of the cap of the second embodiment is the same asthe first embodiment, except the sliding rail assembly 30B.

[0054] As shown in FIG. 7, the guiding rail 31′ having a C-shaped crosssectional sliding slot 311′ extended along the bottom brim 12′ of thecap body 10′ at an outer side thereof. The sliding guider 32′ comprisesan elongated guiding arm 321′ which is securely affixed to the couplingedge 21′ of the cap accessory 20′ and extended into the sliding slot311′ through the opening thereof, and an enlarged guider head 322′extended from the guiding arm 321′ to a position within the sliding slot311′ for retaining the guider head 322′ in position, so as to slidablyengage the sliding guider 32′ with the guiding rail 31′.

[0055] The sliding rail assembly 30′ further comprises a size adjuster34′ which comprises a first adjuster 341′ integrally extended from oneend of the guiding rail 31′ and a second adjuster 342′ integrallyextended from another opposed end of the guiding rail 31′ and arrangedto engage with the first adjuster 341′ to selectively adjust acircumferential size of the bottom brim 12′ of the cap body 10′.

[0056] As shown in FIG. 7, the first adjuster 341 ′ has an engagementslot 3411 ′ having a C-shaped cross sectional communicating with thesliding slot 311′ and a plurality of adjustment through grooves 3412′spacedly provided at upper and lower walls of the engagement slot 3411′.The second adjuster 342′ comprises an elastic adjuster arm 3421′, havinga V-shaped, having two engaging tips 3422′ opposedly and outwardlyextending wherein the adjuster arm 3421′ is arranged to slidably insertinto the engagement slot 3411′ so that the two engaging tips 3422′ areinserted into the adjustment through grooves 3412′ at the upper andlower walls of the engagement slot 3411′ respectively to outside, so asto retain the circumferential size of the bottom brim 12′ of the capbody 10′.

[0057] In other words, when the engaging tips 3422′ are engaged with theadjustment through grooves 3412′ at positions close to the end of theguiding rail 31′, the size of the circumference of the bottom brim 12′of the cap body 10′ will be reduced. Likewise, when the engaging tips3422′ are engaged with the adjustment through grooves 3412′ at positionsaway from the end of the guiding rail 31′, the size of the circumferenceof the bottom brim 12′ of the cap body 10′ will be increased.

[0058] In order to detach the second adjuster 342′ from the firstadjuster 341′, the wearer is able to apply a compression force at theengaging tips 3422′ to push the engaging tips 3422′ into the engagementslot 3411′ so as to disengage the second adjuster 342′ from the firstadjuster 341′.

[0059]FIG. 8 illustrates an alternative mode of the guiding rail 31Ewhich is mounted along the bottom brim 12E of the cap body 10F whereinan upper portion of the guiding rail 31E is affixed to the bottom edgesof the cap leaves 101E and a lower portion of the guiding rail 31E isaffixed to an upper edge of the brim strap 102E while the brim strap102E is inwardly flipped to attached to inner sides of the cap leaves101E to form the bottom brim 12E in such a manner that the sliding slot311E is indented on the cap body 10F around the bottom brim 12E thereof,so as to keep the aesthetic appearance of the cap.

[0060] It is worth mentioning that the sliding rail assembly 30E iscapable of incorporating with the size adjuster 34′ as disclosed abovesecond embodiment without altering the structure of the sliding railassembly 30E.

[0061]FIG. 9 illustrates an alternative mode of the size adjuster 34″wherein the first adjuster 341″, which is integrally extended from oneend of the guiding rail 31″, has an engagement slot 3411″ having aC-shaped cross sectional communicating with the sliding slot 311″ and aplurality of adjustment through grooves 3412″ spacedly provided on afront wall of the engagement slot 3411″ at an opening thereof.

[0062] The second adjuster 342′, which is integrally extended fromanother opposed end of the guiding rail 31″, has an elastic adjuster arm3421″ having a V-shaped cross sectional, and at least an engaging tip3422″ outwardly protruded from the adjuster arm 3421″ in such a mannerthat when the adjuster arm 3421″ is slidably inserted into theengagement slot 3411″, the engaging tip 3422″ is selectively engagedwith the adjustment through groove 3412″ so as to retain thecircumferential size of the bottom brim 12″ of the cap body 10″.

[0063] In order to detach the second adjuster 342″ from the firstadjuster 341″, the wearer is able to compress the adjuster arm 3421″ ata free end thereof to push the engaging tips 3422″ into the engagementslot 3411″ so as to disengage the second adjuster 342″ from the firstadjuster 341″.

[0064] It is worth mentioning that the alignment arrangement 33 of thefirst embodiment and its alternative can be applied on the secondembodiment of the present invention without altering the originalconfiguration thereof, so as to slidably guide the cap accessory 20″ ata desired position with respect to the cap body 10″.

[0065] While the forgoing description and figures describe the first andsecond embodiments and their alternatives of the present invention, itshould be appreciated that certain obvious modification, variations, andsubstitutions may be made without departing from the spirit and scope ofthe present invention. For example, the size adjuster 34′ of the secondembodiment can be employed in the first embodiment while the twoparallel sliding slots 311C of the first embodiment can be incorporatedwith the second embodiment.

What is claimed is:
 1. A cap, comprising: a cap body having a cap cavityand a bottom brim; a cap accessory having a corresponding coupling edge;and a sliding rail assembly, comprising: an elongated guiding railextended along said bottom brim of said cap body; and a sliding guiderwhich is affixed to a portion of said coupling edge of said capaccessory and slidably engaged with said sliding rail in such a mannerthat said cap accessory is capable of selectively sliding along saidbottom brim of said cap body.
 2. The cap, as recited in claim 1, whereinsaid guiding rail is an elongated strap having a C-shaped crosssectional defining a longitudinal sliding slot having an opening facingtowards said coupling edge of said cap accessory, wherein said slidingguider is slidably engaged with said sliding slot so that said capaccessory is capable of selectively sliding along said bottom brim ofsaid cap body.
 3. The cap, as recited in claim 2, wherein said slidingguider comprises an elongated guiding arm which is securely affixed tosaid portion of said coupling edge of said cap accessory and extendedinto said sliding slot through said opening thereof, and an enlargedguider head extended from said guiding arm to a position within saidsliding slot for retaining said sliding guider in position, so as toslidably engage said sliding guider with said guiding rail.
 4. The cap,as recited in claim 3, wherein said sliding rail assembly furthercomprises an alignment arrangement to guide said cap accessory inposition, wherein said alignment has a plurality of guiding indentionsspacedly formed on upper and lower walls of said sliding slotrespectively and comprises at least two corresponding guidingprotrusions opposedly projected from a circumferential surface of saidguider head in such a manner that when said sliding guider is slid alongsaid guiding rail, said guiding protrusions are respectively engagedwith said corresponding guiding indentions so as to retain said capaccessory in position.
 5. The cap, as recited in claim 3, wherein saidguiding head is rotatably mounted to a rear end of said guiding arm at aposition with said sliding slot in such a manner that when said capaccessory is slid along said bottom brim of said cap body, said guiderhead is driven to rotate with said sliding slot.
 6. The cap, as recitedin claim 5, wherein said sliding rail assembly further comprises analignment arrangement to guide said cap accessory in position, whereinsaid alignment has a plurality of guiding indentions spacedly formed onan inner wall of said sliding slot and comprises a corresponding guidingprotrusion outwardly projected from a rear wall of said guider head andarranged to engage with one of said guiding indentions when said guiderhead is rotatably slid along said sliding slot.
 7. The cap, as recitedin claim 2, wherein said cap body is constructed by a plurality ofleaves connected in edge to edge manner to form said cap cavity and anelongated brim strap encircling around bottom edges of said cap leaves,wherein an upper portion of said guiding rail is affixed to said bottomedges of said cap leaves and a lower portion of said guiding rail isaffixed to an upper edge of said brim strap while said brim strap isinwardly flipped to attached to inner sides of said cap leaves to formsaid bottom brim in such a manner that said sliding slot is indented onsaid cap body around said bottom brim thereof.
 8. The cap, as recited inclaim 4, wherein said cap body is constructed by a plurality of leavesconnected in edge to edge manner to form said cap cavity and anelongated brim strap encircling around bottom edges of said cap leaves,wherein an upper portion of said guiding rail is affixed to said bottomedges of said cap leaves and a lower portion of said guiding rail isaffixed to an upper edge of said brim strap while said brim strap isinwardly flipped to attached to inner sides of said cap leaves to formsaid bottom brim in such a manner that said sliding slot is indented onsaid cap body around said bottom brim thereof.
 9. The cap, as recited inclaim 6, wherein said cap body is constructed by a plurality of leavesconnected in edge to edge manner to form said cap cavity and anelongated brim strap encircling around bottom edges of said cap leaves,wherein an upper portion of said guiding rail is affixed to said bottomedges of said cap leaves and a lower portion of said guiding rail isaffixed to an upper edge of said brim strap while said brim strap isinwardly flipped to attached to inner sides of said cap leaves to formsaid bottom brim in such a manner that said sliding slot is indented onsaid cap body around said bottom brim thereof.
 10. The cap, as recitedin claim 1, wherein said sliding guider, having a C-shaped crosssectional, has a sliding slot having an opening facing towards saidguiding rail, wherein said guiding rail comprises an elongated guidingarm encirclingly extended along said bottom brim of said cap body tosaid sliding slot through said opening thereof and an enlarged guidinghead extended from said guiding arm within said sliding slot, so as toslidably engage said sliding guider with said guiding rail.
 11. The cap,as recited in claim 10, wherein said cap body is constructed by aplurality of leaves connected in edge to edge manner to form said capcavity and an elongated brim strap encircling around bottom edges ofsaid cap leaves, wherein an upper portion of said guiding rail isaffixed to said bottom edges of said cap leaves and a lower portion ofsaid guiding rail is affixed to an upper edge of said brim strap whilesaid brim strap is inwardly flipped to attached to inner sides of saidcap leaves to form said bottom brim in such a manner that said guiderhead is protruded along said bottom brim of said cap body.
 12. The cap,as recited in claim 10, wherein said sliding rail assembly furthercomprises an alignment arrangement to guide said cap accessory inposition, wherein said alignment has a plurality of guiding indentionsspacedly formed on upper and lower walls of said sliding slotrespectively and comprises at least two corresponding guidingprotrusions opposedly projected from a circumferential surface of saidguider head in such a manner that when said sliding guider is slid alongsaid guiding rail, said guiding protrusions are respectively engagedwith said corresponding guiding indentions so as to retain said capaccessory in position.
 13. The cap, as recited in claim 11, wherein saidsliding rail assembly further comprises an alignment arrangement toguide said cap accessory in position, wherein said alignment has aplurality of guiding indentions spacedly formed on upper and lower wallsof said sliding slot respectively and comprises at least twocorresponding guiding protrusions opposedly projected from acircumferential surface of said guider head in such a manner that whensaid sliding guider is slid along said guiding rail, said guidingprotrusions are respectively engaged with said corresponding guidingindentions so as to retain said cap accessory in position.
 14. The cap,as recited in claim 2, wherein said guiding rail further has a secondsliding slot, wherein said two sliding slots are parallelly extendedalong said bottom brim of said cap body while two sliding guiders areaffixed to two said cap accessories to slidably engage with said twosliding slots respectively, so that said two cap accessories are capableof sliding along said bottom brim of said cap body individually.
 15. Thecap, as recited in claim 4, wherein said guiding rail further has asecond sliding slot, wherein said two sliding slots are parallellyextended along said bottom brim of said cap body while two slidingguiders are affixed to two said cap accessories to slidably engage withsaid two sliding slots respectively, so that said two cap accessoriesare capable of sliding along said bottom brim of said cap bodyindividually.
 16. The cap, as recited in claim 1, wherein said slidingrail assembly further comprises a size adjuster which comprises a firstadjuster integrally extended from one end of said guiding rail and asecond adjuster integrally extended from another opposed end of saidguider rail and arranged to engage with said first adjuster toselectively adjust a circumferential size of said bottom brim of saidcap body.
 17. The cap, as recited in claim 3, wherein said sliding railassembly further comprises a size adjuster which comprises a firstadjuster integrally extended from one end of said guiding rail and asecond adjuster integrally extended from another opposed end of saidguider rail and arranged to engage with said first adjuster toselectively adjust a circumferential size of said bottom brim of saidcap body.
 18. The cap, as recited in claim 10, wherein said sliding railassembly further comprises a size adjuster which comprises a firstadjuster integrally extended from one end of said guiding rail and asecond adjuster integrally extended from another opposed end of saidguider rail and arranged to engage with said first adjuster toselectively adjust a circumferential size of said bottom brim of saidcap body.
 19. The cap, as recited in claim 16, wherein said firstadjuster has an engagement slot having a C-shaped cross sectional and aplurality of adjustment through grooves spacedly provided at upper andlower walls of said engagement slot, wherein said second adjustercomprises a V-shaped elastic adjuster arm having two engaging tipsopposedly and outwardly extending, wherein said adjuster arm is arrangedto slidably insert into said engagement slot so that said two engagingtips are inserted into said adjustment through grooves at said upper andlower walls of said engagement slot respectively to outside, so as toretain said circumferential size of said bottom brim of said cap body.20. The cap, as recited in claim 17, wherein said first adjuster has anengagement slot having a C-shaped cross sectional and a plurality ofadjustment through grooves spacedly provided at upper and lower walls ofsaid engagement slot, wherein said second adjuster comprises a V-shapedelastic adjuster arm having two engaging tips opposedly and outwardlyextending, wherein said adjuster arm is arranged to slidably insert intosaid engagement slot so that said two engaging tips are inserted intosaid adjustment through grooves at said upper and lower walls of saidengagement slot respectively to outside, so as to retain saidcircumferential size of said bottom brim of said cap body.
 21. The cap,as recited in claim 18, wherein said first adjuster has an engagementslot having a C-shaped cross sectional and a plurality of adjustmentthrough grooves spacedly provided at upper and lower walls of saidengagement slot, wherein said second adjuster comprises a V-shapedelastic adjuster arm having two engaging tips opposedly and outwardlyextending, wherein said adjuster arm is arranged to slidably insert intosaid engagement slot so that said two engaging tips are inserted intosaid adjustment through grooves at said upper and lower walls of saidengagement slot respectively to outside, so as to retain saidcircumferential size of said bottom brim of said cap body.
 22. The cap,as recited in claim 16, wherein said first adjuster has an engagementslot having a C-shaped cross sectional and a plurality of adjustmentthrough grooves spacedly provided on a front wall of said engagementslot at an opening thereof, wherein said second adjuster has an elasticadjuster arm having a V-shaped cross sectional, and at least an engagingtip outwardly protruded from said adjuster arm in such a manner thatwhen said adjuster arm is slidably inserted into said engagement slot,said engaging tip is selectively engaged with said adjustment throughgroove so as to retain said circumferential size of said bottom brim ofsaid cap body.
 23. The cap, as recited in claim 17, wherein said firstadjuster has an engagement slot having a C-shaped cross sectional and aplurality of adjustment through grooves spacedly provided on a frontwall of said engagement slot at an opening thereof, wherein said secondadjuster has an elastic adjuster arm having a V-shaped cross sectional,and at least an engaging tip outwardly protruded from said adjuster armin such a manner that when said adjuster arm is slidably inserted intosaid engagement slot, said engaging tip is selectively engaged with saidadjustment through groove so as to retain said circumferential size ofsaid bottom brim of said cap body.
 24. The cap, as recited in claim 18,wherein said first adjuster has an engagement slot having a C-shapedcross sectional and a plurality of adjustment through grooves spacedlyprovided on a front wall of said engagement slot at an opening thereof,wherein said second adjuster has an elastic adjuster arm having aV-shaped cross sectional, and at least an engaging tip outwardlyprotruded from said adjuster arm in such a manner that when saidadjuster arm is slidably inserted into said engagement slot, saidengaging tip is selectively engaged with said adjustment through grooveso as to retain said circumferential size of said bottom brim of saidcap body.